Battery charger



FIG. 1 is a front perspective view of the invention;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a rear elevational view of FIG. 1;

FIG. 4 is right side elevational view of FIG. 1;

FIG. 5 is a left side elevational view of FIG. 1;

FIG. 6 is a top view of FIG. 1; and,

FIG. 7 is a bottom view of FIG. 1.

Any elements shown in dash-dot lines form no part of the claimed invention in this application, and are instead included to show environmental aspects of the claimed invention. 

The ornamental design for a battery charger, as shown and described. 